Role of plant-associated bacteria as bio-stimulants in alleviation of chromium toxicity in plants

Gupta, Pratishtha; Kumar, Vipin; Rani, Rupa

doi:10.1016/b978-0-323-85163-3.00012-0

Cited by 2 publications

(1 citation statement)

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“…Chromium is severely toxic to plants, and it drastically reduces plant development and growth. Hexavalent Cr is among the most mutagenic and carcinogenic heavy metal pollutants (Gupta et al, 2022; Lei et al, 2021). Fei et al (2022) reported that the amount of Cr is approximately 72 mg/kg in agricultural soils, but it varies in different regions.…”

Section: Introductionmentioning

confidence: 99%

The potential of Bacillus subtilis and phosphorus in improving the growth of wheat under chromium stress

Ilyas

Akhtar

Naseem

et al. 2022

Journal of Applied Microbiology

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The high magnitude of heavy metals contamination in daily food attracts the attention of researchers for nding e cient and eco-friendly approaches that can help resolve this problem. Hexavalent Chromium (Cr +6 ) is one of the most toxic heavy metals that have deteriorating effects on the growth and quality of the end product of wheat. In this research, the role of Bacillus subtilis and phosphorus fertilizer on wheat development in Cr +6 stress was evaluated. The statistical analysis of the data showed that the coapplication of Bacillus subtilis and phosphorus gave considerably signi cant (p<0.05) results compared to their separate application. The increase in shoot length, root length, shoot fresh weight, and root fresh weight was 38.17%, 29.31%, 47.89%, and 45.85%, respectively, compared to untreated stress-facing plants. The use of Bacillus subtilis and phosphorus improved the process of osmolytes (proline 39.98%, and sugar 41.30%) production in plants which results in high water uptake and structural stability of proteins (86.65%) and improved cell membranes (66.66%) as well. They also augmented the production of antioxidants by 67.71% (SOD), 95.39% (APX), and 60.88% (CAT), respectively. The Cr +6 accumulations were reduced by 54.24%, 59.19%, and 90.26% in the shoot, root, and wheat grains, respectively. The combined application of Bacillus subtilis and phosphorus can reduce the heavy metals toxicity in crops.

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Section: Introductionmentioning

confidence: 99%